Spring bed-bottom.



G. A. MELLON.

SP BED BOTTOM.

APPLIOA' Patented. July 14, I914.

I'ILED DEG.29,1913.

enonen A. Merton, or sr. LOUIS, nrssonnr.

SPRING BED-BOTTOM.

il,il3,526.

Specification of Letters Patent.

lPatented .rai Ml, rare.

Application filed. December 29, 1913. Serial No. 809,217,

bed bottomscomprising a base framework and upright coiled springsmounted on said framework, and the invention has for its object toafiord means in a spring bed bottom of this kind permitting compressionof the "upright springs, brought into service, ac-

cording to the stress placed thereon by the weight of a persons body,without imparting lateral movement to the adjacent springs not subjectedto such weight. A bed bottom so made is highly desirable, for the reasonthat the springs supporting the body are permitted to be depressedaccording to, the weight imposed thereon by each part (if a personsbody, without lateral displacement of the adjoining springs, which, whendisplaced, as in the ordinary bed bottom struc tures, render the surfacebeneath the body uneven and afi'o'rd much less comfort to the body thanis afiorded by .a springstructure made in accordance with myimprovement.

Figure I is a top or plan view of my spring bed bottom. Fig. H is anenlarged top or plan view of a portion of the bed bottom. Fig. H1 is anenlarged vertical Section of a portion of my bed bottom adjacent to oneof its sides. Fig. IV is an enlarged top or plan view of the top coilsof two adjoining coiled springs, and a fragment of the connection bywhich said coils are joined. Fig. V is an enlarged top or plah View ofthe framework wires at the base of one of the springs" and fragments ofthe volute spring supported bythe wires and one of the stays interppsedbetween the base framework wires and the top border wire.

In the drawings: A designates the border wire of the .base or supportingframe of my bed bottom, and Band C are, respectively, the longitudinaland transverse wires of said framework, which intersect each other, as

seen most clearly in Fig. V.

D. designates a top border wire located, prefeii'kably, directly overthe base border wire v F designates coiled main springs supported by theWires of the bottom framework at the intersection of such wires. 0fthese springs, those adjacent to the margin of the bed bottom aresecured in any suitable manner, 6. g., by clips at to the top borderwire D. The springs adjacent to the margin of the bed bottom, and theremainder of the springs are joined to each other by connections aboutto be described. The top coils of the volute springs E are formed atdiametrically opposite points with crimps-or loops .6. These crimps, orloops, shown most clearly in Figs. H and TV, adjoin'each other in linesextendtransversely of the latter.

designates connections by which the springs E are joined to each otherin pairs of rows. These connections are in the form of helical orelastic strands, each connection preferably extending from two adjoiningmarginal. springs at one side of the bed bot tom to two adjoiningmarginal springs die rectly opposite at the other side of the bedbottom. The helical connections F are, in the preferred application,applied to the top coils of the springs E by threading them into' thecrimps or loops e of said-top coils, so that the coils of theconnections encircle said top coils at the locations of said crimps,each connecting spring being utilized to connect two rows of mainsprings as appears most clearly in Fig. TV. i

By the described arrangement and application of the elastic connectionsF to the springs E, said springs in the various rows thereof extendingtransversely of the bed bottom are so joined to each otheras to maintainthem normally in vertical positions, and any of the springs subjected tothe weight of a persons body are depressed without lateral displacementof the adjacent springs. The

crimps or loops e in the coils of the springs provide for the elasticconnections being so applied to the coils as to prevent their slippagethereon, and also prevent lateral displacement of the adjoining springsjoined in pairs by the connections.

It is quite essential in a spring bed bottom made according to myimprovement to furnish means for preventing lateral sway of thestructure superposed above the base framework. I, therefore, incorporatestays or braces G in my bed bottom, which are secured to the top borderwire D, and rest against the=longitudinal wires B of the base framework,near the sides of the bed bottom.

are

U-shape, each brace including two arms,

attached at their outer ends to the top border wire D, and a crossportion g, which fits against the baseframework wire, to which the braceis applied. The cros s'pieces of the braces are formed with crimpsig,which enter into or receive crimps 1), formed in the base frameworkwires that receive the braces. The engagement of the crimps in thebraces with the crimps in the base framework Wires prevents lateraldisplacement of the braces relative to said wires, and the braces arefurthertheld positively by disposing them beneath certain of the springssupported by the bottom framework wires, with the cross pieces of thebraces occupying positions beneath the'bottom coils of said springs, and

extending over the transverse wires of the bottom framework, as seen inFig. V.- It is important that'the braces G yield to a certain degree toavoid stiffness in the bed bottom structure, and I therefore providespring coils in the arms of such braces, (see Fig. III), *which permitthe brace arms to yield and return to normal conditions, according tostrain imposed upon the braces I and the relief of such strain.

1. A spring structure of the character debraces-and the members of thebase framework engaged thereby being crimped for in terlockingengagement with each other, and

being held by said springs.

2. ,A spring structure of the character described comprising a baseframework, coil springs supported by said base framework,

a top border wire to which the marginal springs are connected, andbraces betweensaid top border wire and said base framework, each of saidbraces being provided with a crimped portion which interlocks with saidbase framework.

3. A spring structure of the'char-acter. de scribed comprising a baseframework, coil springs supported by said base framework,

. a top border wire to which the marginal rated from and locateddirectly opposite to the springs in the adjacent rows, and helical Psprings arranged parallel with said rows of main springs and interposeddirectly between said separated springs, each of said main springs beingprovided with a hinge member whereby it is hinged to one of said"helical springs.

5. A spring structure of thecharacter de-' scribed comprising straightrows of mainsprings, the springs in each row being separated from andlocated directly opposite to v the springs in the adjacent rows, andhelical springs arranged parallel with said rowsof main springs andinterposed directly be-; .tween said separated sprmgs, each of sald mainsprings being crimped to provide a straight wire member which issurrounded by one of the helical springs so' as to produce hinge likeconnections between said main springs and said helical springs.

6. A spring structure of the character described. coniprismg straightrows of main springs, the 'springs'in each row being separated fromandlocated directly opposite to the springs in the adjacent rows, andhelical springs arranged parallel with said rows of main springs andinterposed directly between said separated springs, each of said mainsprings being provided with a crimp having a. straight portion forming ahinge meinber whereby the main spring is hinged t0 one of .said helicalsprings, the straight.

hingemember of each main spring being surrounded by one of said helicalsprings and located directly opposite to the straight hinge member. ofthe next adjacent main spring .so asto provide double hinges between theseparated rows of main springs. GEORGE A. MELLON. In the presence of- E.B. LINN, E. CLARK. Q

